White-pine weevil attack susceptibility of western white pine in the Northeast by Ronald C. Wilkinson Download PDF EPUB FB2
Get this from a library. White-pine weevil attack susceptibility of western white pine in the Northeast. [Ronald C Wilkinson; United White-pine weevil attack susceptibility of western white pine in the Northeast book.
Department of Agriculture.; United States. Forest Service.; Northeastern Forest Experiment Station (Radnor, Pa.)]. Western white pine (Pinus monticola) also called silver pine, and California mountain pine, in the family Pinaceae, is a species of pine that occurs in the mountains of the western United States and Canada, specifically the Sierra Nevada, the Cascade Range, the Coast Range, and the northern Rocky sciroccowinds.com tree extends down to sea level in many areas, particularly in Oregon and sciroccowinds.com: Tracheophytes.
The white pine weevil (figure 1) - Pissodes strobi (Peck) (Coleoptera: Curculionidae) - is a native insect attacking eastern white pine (Pinus strobus L.). The latest cytogenetic and breeding studies indicate that two other North American pine weevil species - the Sitka spruce weevil and the Engelmann spruce weevil-also should be classified as Pissodes strobi.
White Pine Weevil—Pissodes strobi The white pine weevil, which kills the top of conifers, is the most serious economic insect pest of white pine. One of the first symptoms of attack in the spring is the presence of pitch flowing from the feeding punctures in the previous year's leading shoot.
Pissodes strobi, known as the white pine weevil or Engelmann spruce weevil, is the primary weevil attacking and destroying white pines. It was described in by William Dandridge Peck, professor of natural history and botany at Harvard University.
The weevil is dark brown with white spots and is native to North sciroccowinds.com: Insecta. Fig. White pine after weevil damage has been pruned. Indirect Control: 1.) Shading of white pine by a hardwood overstory has long been recognized as a viable silvicultural method that discour-ages weevil attack.
Shading makes termi-nals less attractive to weevils, but it also retards height growth. 2.) A recent analysis of plantations in. White Pine Weevil. The white pine weevil is one of the most serious pests of white pine in the area.
Feeding damage rarely kills trees but can cause multiple leaders to develop on infested trees as the terminal leader is killed. Feeding injury can also stunt or distort trees. Host Trees. White pine weevil: The white pine weevil can seriously impact the growth of young eastern white pine by causing the terminal leader to die back.
The weevil can create stem deformation, increase the susceptibility to wood decay organisms, reduce growth andz increase tree mortality. The white pine weevil causes extensive damage to many types of evergreen trees. It is also known as the Engelmann spruce weevil and the Sitka spruce weevil.
Adult weevils are about 8 mm inches) long. These beetles are dark brown with white and tan patches on their backs. They have the characteristic and prominent hooked snout of the weevil. Native to North America, the white pine weevil occurs throughout the range of white pine in eastern Canada.
In western Canada, its distribution coincides with that of various species of spruce. This insect was first described in by W.
Peck, a professor at Harvard University. Micro-habitat(s) Bud, Twig, Terminal shoot. Damage, symptoms. beautiful city park you can hike in for 30 miles or so.) The western white pines there had a shorter(3"), denser needle cluster and growing tips compared to eastern white pine.
The needles really came out from all sides of the twig, more like a spruce would. The bark was similar, but the western was blockier. White pine weevil larvae are white, c-shaped grubs with a brown head capsule. White pine weevil adults are black with reddish-brown and white spots on the elytra and a.
Jun 24, · White pine weevil (Pissodes strobi) larval feeding damage is now becoming very evident in southern Ohio. This means that localized weevil populations may be reduced by removing and destroying infested conifer terminals.
Overwintered females deposit eggs in early spring in the terminals of a wide range of conifers including Douglas-fir, all spruces, as well as Scotch, jack, red, pitch, and. Most damage caused by a white pine weevil infestation is due to the feeding habits of larvae, which are white with brown head markings.
They infest the roots of trees and can lead to the death of the host. Most infested trees wilt, while some grow crookedly or exhibit stem deformation. Reproduction. White pine weevils reproduce only once each year. Pinus monticola Douglas ex D. Don Show All Show Tabs western white pine.
Abstract. Attacks by the white-pine weevil were observed on Virginia pine,Pinus virginiana, a species not previously reported as a host of the sciroccowinds.com a heavily infested white pine plantation, % of the naturally seeded Virginia pines were sciroccowinds.com by: 1.
WHITE PINE WEEVIL (Pissodes strobi). The White Pine Weevil, is a major source of concern to Christmas tree sciroccowinds.comgh the weevil rarely kills an entire tree, it usually kills the terminal shoot and top one or two whorls of branches.
The white pine weevil is probably the most serious pest of white pine in the area. The attacks of this insect stunt or distort trees and can kill two or three years of growth. Life History The adults are reddish-brown snout beetles about a quarter-inch long that are marked irregularly with.
Dramatic needle browning and canopy dieback of eastern white pine (Pinus strobus) in southern New EnglandNicholas J. Brazee, Ph.D. Extension Plant Pathologist During the spring ofa dramatic decline of eastern white pine (Pinus strobus) has been observed throughout southern New England.
SUSCEPTIBILITY OF 10 SPRUCE SPECIES AND HYBRIDS TO THE WHITE PINE WEEVIL (=SITKA SPRUCE WEEVIL) IN THE PACIFIC NORTHWEST R.
Mitchell, N. Johnson, and K. Wright ABSTRACT Ten different species and hybrids of spruce (Picea spp.) were studied on 3 plots for some 16 years to determine their growth rate.
The Eastern White Pine is a relatively easy tree to grow or transplant preferring moist, well-drained loams and cool conditions. While tolerating partial shade while young, it prefers full sun as a mature tree.
Click here to learn how to improve the soil. Things to Watch For. The white pine weevil is the eastern white pine's major insect enemy. white pine only. However, some of the management issues also may address problems associated with attacks on other tree species.
Figure 1 - Adult white pine weevil. In the eastern United States, the white pine weevil may attack at least 20 different tree species, including ornamentals. However, eastern white pine is the most suitable host for. White Pine Weevil Pissodes strobi (Peck) Hanson, T., and E.
Walker. [n.d.] Field guide to common insect pests of urban trees in the Northeast. Waterbury. The growth of white pine in plantations in eastern Tennessee was found to decrease with increased plasticity of the B horizon.
"In New England and New York, white pine generally grows at elevations between sea level and m (1, ft) occasionally higher. In Pennsylvania, the elevation ranges from to m ( to 2, ft).
Nov 21, · WHITE PINE TYPE TYPE DESCRIPTION A. Stand Composition More than 50 percent of the basal area in pine with white pine (Pinus strobus) predominant.
Associated Species White pine can be found growing in associations with most major tree species native to Wisconsin. It is a common to occasional associate in most of the major forest cover types.
Ecological Applications, 10(1),pp. – q by the Ecological Society of America WHITE PINE WEEVIL ATTACK ON WHITE SPRUCE: A SURVIVAL TIME ANALYSIS FANGLIANG HE1 AND RENE´sciroccowinds.com Canadian Forest Service, Paciﬁc Forestry Centre, West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5.
Western white pine is so named for the light color of its wood. The timber was used for. everything from window and door frames to shelving, paneling, and furniture. Photo by Susan McDougall, USDA-NRCS Plants Database. SUMMARY. Western white pine (Pinus monticola) is a Author: Sarah Hines, Ned Klopfenstein, Bryce Richardson, Marcus Warwell, Mee-Sook Kim.
Needles: Western White Pine has 5 needles per bundle. In northwest Oregon and western Washington, you can identify it by counting the needles and noting the elevation. Whitebark Pine also has 5 needles per bundle, but usually grows at higher elevations near the timberline.
Cones: Western White Pine cones are usually 7 or 8 inches long with a distinctive curve like a banana. The Brits have long admired our majestic native Eastern White Pine and have grown it there since —only they call it “Weymouth Pine,” for the bloke who brought the first seeds to the U.K.
Weeping White Pine is propagated by grafting, which means that all of the plants are identical to that first one. Mar 28, · The western white pine has been dangerously damaged by the White Pine Blister Rust, a fungus accidentally introduced from Europe in the early ’s.
It is estimated by the United States Forest Service that over 85 percent of the white pines west of the Cascades have been eradicated by the white pine blister rust fungus.
White Pine Root Decline Symptoms and Cause White pine root decline has a similar name to white pine decline (above); however, the two conditions are different.
White pine root decline, also called Procerum root disease, is an infectious disease caused by a fungus (Leptographim procerum) that attacks tree roots. It has been reported in Christmas.Causal Agent.
White pine blister rust is caused by Cronartium ribicola J.C. Fischer, a heteroecious, macrocyclic fungus that requires two different host plants and involves five spore stages to complete its life cycle.
White pines are the more important economic host and support the pycnial and aecial stages. Ribes species are the alternate hosts on which the uredinial and telial stages are.'UConn' - A unique Waxman selection, this plant is considered one of the finest "intermediate" forms.
In time, the plant becomes a dense, rounded pyramidal tree to 20' tall. It is distinctly tree-like, but the small mature size allows it to be used in many landscapes.
The needles are a healthy blue-green color.